Lewis B. Smedes

When we forgive evil we do not excuse it, we do not tolerate it, we do not smother it. We look the evil full in the face, call it what it is, let its horror shock and stun and enrage us, and only then do we forgive it.

Jesus said that we should render to the state what properly belongs to the state, and though he had taxes in mind, we might reasonably infer that giving the state the job of punishing wrongdoers is one way of giving the state its due.